Alert archive / Florida / Special Marine Warnings in 2021

Special Marine Warning 238, NWS Key West, FL

October 9, 2021

NWS Key West, FL issued this special marine warning at Oct 9, 2021, 11:40 PM EDT. It was in force for 34 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Oct 9, 2021, 11:40 PM EDT (03:40 UTC)
Expired
Oct 10, 2021, 12:14 AM EDT
In force
34 min
Issued by
NWS Key West, FL
Area
Storm-based polygon
Hail
0.0 in
Wind
34.0 mph

What forecasters said that day

The local office's own words before this special marine warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Key West, FL wrote its last area forecast discussion before this special marine warning went out at Oct 9, 10:39 PM EDT, 1 hour 1 minute earlier.

Area forecast discussion, Oct 9, 10:39 PM EDT, 1 hour 1 minute before
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Hazardous weather outlook, Oct 9, 8:37 AM EDT, 15 hours 3 minutes before
Hazardous Weather Outlook...UPDATED
National Weather Service Key West FL
837 AM EDT Sat Oct 9 2021

FLZ076>078-GMZ031>035-042>044-052>055-072>075-101245-
Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
Bayside and Gulf side from Craig Key to west end of Seven Mile
Bridge-
Gulf waters from East Cape Sable to Chokoloskee 20 to 60 NM out
and beyond 5 fathoms-
Gulf of Mexico including Dry Tortugas and Rebecca Shoal Channel-
Gulf of Mexico from west end of Seven Mile Bridge to Halfmoon
Shoal out to 5 Fathoms-
Hawk Channel from Ocean Reef to Craig Key out to the reef-
Hawk Channel from Craig Key to west end of Seven Mile Bridge out
to the reef-
Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal
out to the reef-
Straits of Florida from Ocean Reef to Craig Key out 20 NM-
Straits of Florida from Craig Key to west end of Seven Mile
Bridge out 20 NM-
Straits of Florida from west end of Seven Mile Bridge to south of
Halfmoon Shoal out 20 NM-
Straits of Florida from Halfmoon Shoal to 20 NM west of Dry
Tortugas out 20 NM-
Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out-
Straits of Florida from Craig Key to west end of Seven Mile
Bridge 20 to 60 NM out-
Straits of Florida from west end of Seven Mile Bridge to south of
Halfmoon Shoal 20 to 60 NM out-
Straits of Florida from Halfmoon Shoal to 20 NM west of Dry
Tortugas 20 to 60 NM out-
837 AM EDT Sat Oct 9 2021

This Hazardous Weather Outlook is for the Florida Keys and
adjacent coastal waters.

.DAY ONE...TODAY AND TONIGHT

Isolated thunderstorms are expected. The primary thunderstorm
hazard will be lightning strikes.

The Key West tide gauge has measured high tides about a half foot
above the predicted tides for the past several days.
A Coastal Flood Statement in effect for the Florida Keys through
Sunday morning

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

Sunday and Sunday night, isolated to scattered thunderstorms are
expected. The primary thunderstorm hazards will include lightning
strikes and locally heavy downpours.

Monday through Friday, isolated thunderstorms are expected. The
primary thunderstorms hazard will be lightning strikes.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

In the hours before

Local storm report, Oct 9, 7:57 PM EDT, 3 hours 43 minutes before
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Local storm report, Oct 9, 8:28 PM EDT, 3 hours 12 minutes before
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The office that day

Everything else NWS Key West, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 10, 8:16 AM EDTSpecial Marine WarningKEY44 min
Oct 10, 6:26 PM EDTSpecial Marine WarningKEY40 min
Oct 10, 7:56 PM EDTSpecial Marine WarningKEY19 min

Nearby

Special Marine Warnings in Florida, 2021Every special marine warning in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.